Egg-beater



(No Iodel.) 2 ySheets-Sheet 1.

E. BALTZLEY.

BGG BEATBR.

110.389.631." 4 I Patented sept.18,1a88.

M/Zfn 55555 i E7/enfin I M M@ 2 sneets-snee 2.

(No Model.)

` BBALTZLBY.

BGG BEATER.

No. 389,631. Patented sept. 18', 1888.

y ffy-f U NITED STATES?.

'PATENT OFFICE.

EDWIN BALTZLEY, on PHILADELPHIA, rENNsYLvANlIA.

EGG-BEATER.

Y SPECIFICATION forming .partof` Letters Patent No. 389,631, datedSeptember 18. 1888.

' v Application filed November 3, 1887. Serial No. 254,173. (No model.)

.To all whom it may concern:

Be it known that 1I, EDWIN BALTZLEY, a

citizen of the United States, residing at Philadelphia, inthe county ofPhiladelphia and Stateof Pennsylvania, have invented certain new anduseful'mprovem'ents in Egg-Beaters; and I do declare the following to bea full,

clear, and exact description of the invention, such as will enableothers skilled in the artto which it appertains to make and use thesame,

` reference beinghad to the accompanying drawings, and to theletters andguresof reference marked thereon, which yform a part of thisspecification.

This invention relates to egg-beaters, which have the beater-shaftjournaled horizontally4 in a' vessel, and hasfor its object to 'providea simple, cheap, and'reiicient beater-that can'be 'Y convenientlyhandled and readily cleaned.

The improvement. consists of thepeculiar construction and combination ofthe parts, which hereinafter will be more fully set forth, andparticularly pointed Yout in the claim, and shown in the annexeddrawings, in which- Figure l isa side view, parts being broken away,ofan egg-beater embodying my invention; Fig. 2, a cross=section on thelineX X of Fig. 1;' Fig. 3, a front view of the shaft, showing a singlerowof whips or beaters; Fig. 4, a top plan view of a row'of beaters;Fig. 5, a detail view showing the bearings and the manner of connectingthe crank with the shaft; Fig. 6, a detail, view showing the bearing andthe man-ner of holding thecrank in the bearing when detached fromv the'shaft; Fig. 7, a detail view of one end of the vessel, showing the4groove and the side seated in the groove;

and Fig. 8, a perspective view of a modification, showing the beaterdesigned to be run by machinery.

The vessel is composed of the ends A and A', preferably-of cast metal,having agroove close to their edges, and the body B, of vsheet metalbent into desired form and having its edges fitted-into thegrooves'inthe end pieces, which arelci'amped to the edges of the body by the boltspassing through ears a, cast at each upper corner and at the bottom ofthe end pieces. The lower edges of the ends curve on a circle which hasthe shaft for its center, and the bottom of the body is correspondingl.curved, so that the ends of the whips or heal?-` ing it in the vessel.The end A has a housing,

F-,opposite the semicircular flange-in which is placed the '.bearing f,beingheld therein by the set-screw f to receive thc reduced jend e ofthe shaft. The endA has a'tnbular bearing, G, for -the crankjlf.l 1.

The bore lof the bearing iscontractedat its inner end, g, to receive:the-ifredncedgend h of the crank, which, near its' Vouter end, providedwith two annular grooves, h' and-h?, and the annular rib or ange h3,separating the two grooves hfand h. .The grooveh2 is much narrower 'thanthe'groove h', so that when .the setscrew I is projected thereinthecrank will not have any sliding movement in its bearing G,

v'whereas when projected into -groove'h the `crank is free to move inand out in its bearing a limited distance to engage its end with the endof the shaft. The surface of thevrib or ange hs'isl-not flush withthesurfaceof the crank on each side of the grooves -h' and h-, so thatwhen the set-screw I is turned out to free `it of the groove h2 thecrank can be slipped out longitudinally in its bearings to disengage itfrom the shaft, but cannot be entirely withdrawn, because the end of theset-'screw will engage with the inner wall of the groove h. Thus it willbe seen that the crank' cannot be accidentally displaced and lost, andwill always be in position to .be coupled with the shaft. is adapted toenter an opening, e', in the end of the shaftto hold the shaft down onthe flange d, and the end of h Vis cut away to receive a correspondingprojection, e', on the end of' shaft E for coupling thel crank and shafttogether. v

The whips or `beaters J composed of fine wire, are loop-shaped, and aresecured at their inner ends tojthe shaft E inrows. The whips of a rowcrossing andfrecrossing mutual ly brace each other and form a.web-beater composed The pintle h4 at the end of the cra a f Lit vferred.

l.; and is caught by the substance quickly over" it. The beaters arearranged in rows of more than four, preferably eight, which, after a se'ries cf practical experiments, has been found to give the best results.It is not absolutely necessary to arrange the whips in rows, as willbereadily appreciated; but for strength and purposes of cleaning thisarrangement is pre- In operation the whips, heilig composed of elasticwilfe, have a variety of movement in their passage through the mass.yield- .ing and springing in all and every direction,

greatly facilitating rapid aeration.

` Fig. 8 shows a large-sized machine constructed in all respects likethat shown in Figs. I to 7, inclusive, and hereinbefore described, savethat the crank II and the legs D are dispensed with, and are replaced bythe bandwheel H andthe supporting-frame D', respectivclv.

The tenacious character of albunien renders it comparatively easy tobeat the whites of an egg stiff. This tenacity is reduced when the yelkis added, and still more when sugar is joined with it, thus making theaeration of eggs and sugar up tothe high standard required by goodbaking very difficult. In beating the white of an egg the action shouldbe comparatively slow in the-beginning and increase as the albumenexpands; but the opposite of this must beobserved in beating the yolksand whites, or the yelks, whites, and sugar, else, after a certainconsistency is reached, the air-cells willbe broken as fast as they areformed.` In my invention this slowing down of the mechanical actiontakes place automatically without changing lthe speed of the machine. Inthe beginning of a beating operation the webewhips, acting as a fan,create a forward draft of air into the mixture as they pass-down intoit. There is therefore a pressure of air upon the forward body'T of themixture as the fine whips pass into it, leaving in their wake channels,into which the air rushes and is quickly inelosed in ine cells, whichare not easily broken down. Added to this, after the first revolution ofthe whips, they carry with them some of the egg, which ii rstdistributes itself over their vertical length practically in sheets, andthus not only adds to the fan character ef the whips, but as it iscarried down on the mixture in the bottom of the vessel folds over andimprisons the-air driven before them. On the opposite side of the vesselthe upward movement of the whi ps, by reason of this number anddistribution, gently lifts the egg and carries it upward and forward. Atfirst it partially drops as it proceeds toward the vertical, but inv sodoing it is caught on the numerous meshed wires or whips, each ofwhich,being tremulous, gently agitates and stretches it out, and therebycontinues to form air-cells, for it must be remembered that this istaking place around the center of movement inl the vessel toward whichthe air is driven. As the mixture thickens,it gradually clings more andmore to the outer ends of the whips or periphery of movement, the firsteffect of which is'- to decrease the violence of agitation. Thdeggapparently be comes a solid rim around the ends of the whips, butcontinues to aerate, though slower and more gently,in conformity to therequirements of its greater sensitiveness. At this stage a change in theprocess of aeration has taken place. The egg is stretched upon the outerends of the whips, forming a circular thin sheet around them, themovement of which forces the air down and on its interior sides, towhich it has thc freest access by reasonof the whips being composed offine wires, and forming no body of obstruction at any point. The aircirculates and expands its penetrative force upon the whole interior ofthe sheet of egg, while a similar process is taking place in a. lesserdegree on the outside. Air-cells are more readily formed therefrom bythe even shifting of the body of the egg on the whips by reason ofrelation and the force of gravity, the independence of the whips,andtheir elas ticity, all of which form openings in the egg, into which theair rushes and is inelosed in minute cells.

Having thus described my invention, what I claim, and desire to secureby Lcttels Patent, 1s

The combination, with the vessel having a bearing at each end and havingthe half-round lips d, projecting inward from the ends of the vessel inline with the lower half of the said bearings, ofthe beater-shaftadapted to be supported at its ends on the said lips d, and having oneend reduced and journaled in one of the bearings and having its otherend provided with an opening and a projection, the crank journaled inthe other bearing, having its inner end reduced to fit in the opening inthe beater-shaft, and having a corresponding projection to engage withthe projection of the said shaft, and provided with two annular grooves,the portion between the grooves be ing reduced, and the set-screw I,passing through thbearing and adapted to engage with the'said grooves,substantially as and for the purpose described.

In testimony whereof I aftix luy signature in presence of two witnesses.

EDWIN BALTZLEY.

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